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AWR1843: How do I specify the calibration/monitoring frequency limit?

Kensuke
Expert 1140 points
Part Number: AWR1843


How do I specify the calibration/monitoring frequency limit?

The demo program of mmwave_sdk_03_02_00_04 is implemented as below:

gMmwMssMCB.cfg.openCfg.freqLimitLow = 760U;
gMmwMssMCB.cfg.openCfg.freqLimitHigh = 810U;

This is the maximum range of AWR1843, but is this a proper implementation?

Is there any advantage in setting to match the chirp setting (i.e. the lower limit is same as start frequency and the higher limit is same as a end frequency)?

  • 0
    TI__Genius 15005 points

    Hi,

    The calibration frequency limits are there to ensure mainly that any chirps used for calibration and monitoring are limited to a programmed range. This would normally be done for regulatory compliance.


    If these limits are not set, then they are assumed to be the unrestricted and up to the extrene frequencies (which correspond to the implementation in the demo). You can program them to other values as desired. There is no disadvantage in setting them to match the chirp/profile setting.

    Best Regards,

    Anand

  • 0 in reply to Anand Gadiyar
    Expert 1140 points

    Hi Anand,

    Thank you. I understood.

    Kensuke